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September 1, 2008
7036-135E
Page 11
Mt. Vernon Pellet Insert (AE)
Mark area of
floor to cut
Starter hole
Use 2 x 4 from insert
packaging to support insert
Keep sharp edge of
metal floor away from
power cord
Leveling Leg
G. Removing Metal Floor of Factory-Built Firebox
• The firebrick (refractory), glass doors, screen rails, screen
mesh and log grates can be removed from a factory-built
firebox in order to gain minimum insert opening require-
ments.
• Any smoke shelves, shields and baffles may be removed
from a factory-built firebox if attached with mechanical fas-
teners.
• The metal floor of the factory-built firebox may be removed
to facilitate the installation of the insert only when a 1/4
inch (6mm) airspace is provided between the insert and
the floor of outer wrap.
Figure 11.1. Measure and mark the metal
floor for cutting. With a drill, make a starter
hole in each corner.
Figure 11.2. Using a saws-all, cut out the
floor.
Figure 11.3. If the floor is made of thin metal,
we recommend using the 2 x 4 from the insert
packaging to support the insert. The 2 x 4
may need to be cut to the appropriate size.
Figure 11.4. Place the insert into the fac-
tory-built firebox. Ensure that the power
cord can not be damaged by the sharp metal
edge. You may need to cut out a notch to
accomodate the cord.
Figure 11.5. Ensure that the leveling leg is
positioned over the 2 x 4 before leveling the
insert.
The following is only one example as there are many differ-
ent models of factory-built fireplaces.